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Article

A theoretical study of spin-angular behaviors of potential scattering resonances

Authors: Thylwe, K.-E., McCabe, P.
Document Type: Article
Pubstate: Published
Journal: Physica Scripta
Volume: 89   085401
Year: 2014

Abstract

Resonance scattering of a Dirac particle (electron) in a screened Coulomb potential (of Lorentz vector type) is investigated. The so-called direct and spin-flip differential cross sections for Dirac particles are analyzed by a partial- wave analysis, as well as the spin-polarization parameters, here denoted S, T and U. This model study of angular as well as energy behaviors shows that differential cross sections, at forward and backward angles, together with the polarization parameter T seem to be best indicators of energy and orbital angular momentum of sharp, isolated, resonances.